docs: def by_prefix(self,
                    prefix,
                    zipcode_type=ZipcodeType.Standard,
                    sort_by=SimpleZipcode.zipcode.name,
                    ascending=True,
                    returns=DEFAULT_LIMIT):
          """
          Search zipcode information by first N digits.
  
          Returns multiple results.
          """
          return self.query(
              prefix=prefix,
              sort_by=sort_by, zipcode_type=zipcode_type,
              ascending=ascending, returns=returns,
          )